baber/WOPTO huggingface dataset:
Patent GB-712194-A (GB)
Title: Improvements in and relating to reflecting luminous signals
IPC: G02B5/124
Filed: 1951-10-30
Abstract: 712,194. Signs. SWAROVSKI, A. SWAROVSKI, W., SWAROVSKI, F., SWAROVSKI, D., SWAROVSKI, M., and FREY, R., [trading as SWAROVSKI GLASFABRIK UND TYROLIT-SCHLEIFMITTEL-WERKE, D.]. Oct. 30, 1951 [Aug. 29, 1951], No. 25315/51. Class 3(2) In a signal having light reflecting bodies 3 embedded in a plastic mass 2 which is rigid when hardened, each of the bodies 3 is arranged in a separate opening in a strip form or plate form carrier 1 and the mass 2 which secures it in position in the opening in the carrier 1 is anchored to the carrier solely by engaging the carrier in the region of the said opening. The bodies 3 are made as reflex reflectors and the support may be rigid or flexible. More than one reflector 3 may be 'embedded in a single piece of plastic material or alternatively each reflector 3 may be attached by a separate piece. The reflectors 3 may be embedded in the plastic material and .attached to the support in a press in one operation or alternatively each reflector may be embedded first in material by using a press tool which also forms a shank on the plastic material and then the reflector is attached to the support by riveting over the shank.
Patent GB-262222-A (GB)
Title: Improvements relating to pan-grates for crushing machines or the like mills for disintegrating solid matter
IPC: B02C17/18
Filed: 1925-10-12
Abstract: 262,222. Chamberlain, F., and Gripsons, Ltd. Oct. 12, 1925. Edge-runners and pans and like mills.-Pangrates for crashing and disintegrating mills comprise a frame composed of a number of sections of skeleton formation and provided with cross bracing-members, detachable perforated plates being secured to the frame and having lugs on the underside to engage the sides of the sections of the frame. As shown, the sections 3 are of sector shape with recesses 4 in the end pieces of each section to accommodate securing-bolts. The cross bracing-members 5 are provided with enlarged bosses 6 having slots or recesses to receive threaded nuts 7 which are engaged by studs 8 for securing the steel &c. plates 1 to the frame. The plates have recesses 9 for the heads of the studs 8, and the nuts 7 are preferably of brass. Lugs 13 on the underside of the plates engage the sides of the sections 3. On unscrewing the studs 8, the plates 1 are detachable from above without interfering with or removing the frame. Instead of studs, the plates may be secured by bolts the heads of which are located in recesses in the bosses 6.
Patent GB-1363189-A (GB)
Title: Process for the preparation of polyphenylene ethers with activated copper-amine catalysts
IPC: C08G65/44
Filed: 1972-05-31
Abstract: 1363189 Polyphenylene ethers GENERAL ELECTRIC CO 31 May 1972 [10 June 1971] 25447/72 Heading C3R In a process for preparing polyphenylene ethers by reacting a phenol with oxygen in the presence of a catalyst comprising a copper salt and a primary, secondary or tertiary amine, there is added to the catalyst an alkali metal bromide or an alkaline earth metal bromide to increase the rate of polymerization. In examples polymers are obtained from 2,6-xylenol using catalysts in which the copper salts are cupric sulphate, cupric chloride, cupric bromide, cupric acetate, cupric fluoride, cuprous chloride and cuprous bromide; the amines are di-n-butyl amine, n-butyl amine, N-methylcyclohexyl amine and pyridine; and the bromides are sodium bromide, potassium bromide, lithium bromide, caesium bromide and magnesium bromide; diphenyl guanidine is added as a promoter in some instances.
Patent GB-874816-A (GB)
Title: Method and apparatus for making semiconductor units
IPC: C03C27/04
Filed: 1959-07-24
Abstract: 874,816. Semi-conductor devices. TEXAS INSTRUMENTS Inc. July 24, 1959 [July 31, 1958], No. 25467/59. Class 37. [Also in Group XXIII] A glass-enclosed semi-conductor device comprising a contact element with a glass bead on the lead wire thereof and a semi-conductor element inside a glass tube is sealed by assembling the contact element and the semi-conductor element in proper engaging relationship in a separable holder and heating the assembled device in an inert gas to effect sealing of the glass parts. As shown, Fig. 1, two diode holders 20, each comprising a pair of separable members, are mounted on a bushing 18 which is slidable between stops 34, 36 by a reciprocating piston-type fluid motor 22 so as to place each holder 20 in turn underneath a housing 64 into which the holder is then driven by the action of a second fluid motor 46, the piston of which pushes a yoke 50 which engages a slidable push-rod 58 on which the bottom part of holder 20 is screwed. The holder 20 is forced into a central chamber 78, Fig. 2, of housing 64, a gas-tight seal between the housing and the holder being produced by a gasket 94 seated in a flange 92 at the base of the holder. A heatconcentrating graphite ring 90, located within the holder adjacent the glass parts to be sealed is heated by RF energy supplied to a single turn coil 74 which is cooled by water flowing through a pipe 76, the parts of the diode being held together in proper engaging relationship by means of a weight 86. The chamber 78 is evacuated through a passage 82 and an inert gas, e.g. nitrogen, under a pressure of, say, 100 p.s.i., is supplied through a passage 80 during the sealing process; sealing under vacuum is also mentioned. While one holder is in the housing the other may be unloaded and reloaded, manually or automatically. The invention is also applicable to the sealing of transistors.
Patent GB-590010-A (GB)
Title: Improvements relating to the control of the conveyors of bread provers
IPC: A21B1/48
Filed: 1944-12-20
Abstract: 590,010. Making bread. BOWKER, H. W., and BAKER PERKINS, Ltd. Dec. 20, 1944, No. 25580. [Class 28 (i)] To enable enough dough pieces to be delivered from a proving chamber A-B to keep the oven conveyer 2 stocked with dough, the endless chains 4 of a prover 3 are driven in synchronism with the oven conveyer by an electric motor through reduction gearing to the shaft by a sprocket 35, which is controlled by a starting and stopping switch 6 driven from the drag shaft 1 of the oven conveyer which thereby controls the prover conveyer. When started the prover conveyer is intermittently stopped and started through a switch 16, so as to stop the trays 5 containing the dough carriages at the point A, whereby the carriages can be run out along rails 34 to enable dough to be placed by hand on to the oven conveyer 2. The box 13 in the oven conveyer contains the switch 6 operated by a drag shaft 1. B is the feeding point where dough pieces are placed in the prover and A is the delivery point on to the oven conveyer plates at the beginning of the oven feed. The prover conveyer is adapted to open the switch 16 actuated by a hump on a sprocket wheel 12 driven by the conveyer chains. The shaft 1 of the oven conveyer operates the starting and stopping cam 8, Fig. 2, of the switch 6 for the motor of the prover conveyer 4. The stopping and starting switch 16 is adjustable by means of a hand wheel 21 whereby the trays 5 can be adjusted to stop exactly at the delivery point A without overrun. Visual indication of the starting of the prover conveyer is provided by means of a switch arm 23 to show that the prover conveyer is about to begin movement. The switch 6 and the switch 16 are in parallel and in series with the coil of contactor controlling the motor circuit.
Patent GB-1019499-A (GB)
Title: A hanger rail for suspension-type filing systems
IPC: B42F21/00
Filed: 1964-06-22
Abstract: 1,019,499. Filing papers. M. LEITZ, M. LEITZ, C. LEITZ, and H. KLAIBER, [trading as FIRMA LOUIS LEITZ]. June 22, 1964 [June 20, 1963], No. 25799/64. Heading B6E. A hanger rail 10 includes an inverted V- shaped recess 18 between two downwardlyextending limbs 12, 14 for the reception of the back or one edge of a folder, the limb 12 being shaped to provide opposed channel-sectioned grooves 22, 26, adapted to receive an index strip. The folder is retained between the limbs 12, 14 by a rod of circular cross-section resting on the lips at the lower end of said recess. Alternatively, the folder is retained by appropriately shaped members 40, Fig. 3 (not shown). The index strip 56 is housed in a transparent cover 52.
Patent GB-835622-A (GB)
Title: Improvements in or relating to terminal boxes
Inventor: GIBBS BERNARD JAMES
IPC: H02G3/08
Filed: 1957-08-16
Abstract: 835,622. Junction-boxes. LIGHT STEEL SECTIONAL CONSTRUCTIONS Ltd. Aug. 18, 1958 [Aug. 16, 1957], No. 25914/57. Class 38 (1). A terminal-box comprising a rectangular part 3 and lid 4, and connected to a conduit 2 of irregular cross-section carrying a flexible heating cable 1, has an opening shaped to receive conduit 2 in the end wall 6, a partition 7, parallel to 6, dividing the box into two compartments and a sealing-ring 10, set in a groove in seating member 8, which prevents the ingress of moisture to the box. Lid 4 has a projection 11 which presses against ring 10 to complete the seal. Seating member 8 is so shaped as to have upper surfaces 9 at the same level as the flat top of the conduit. The partition 7 has an opening for cable 1 and beyond lies a lower seating member 14 and upper bridge member 15, secured together and to box member 3 by screws 16, both members being shaped to receive the cable and sealing-ring 17 which forms a further seal inside the box. Guides 18 are provided for slidable reception of terminal block 19.
Patent GB-840731-A (GB)
Title: Improvements in photographic processes
IPC: G03C8/08
Filed: 1956-08-24
Abstract: 1 - Phenyl - 3 - (3 - chlorosulphonylbenzamido)-5-pyrazolone is p prepared by heating diethyl oxalate and 1-phenyl-3-amino-5-pyrazolone and adding m - chlorosulphonylbenzoyl chloride.  It is treated with alkali to produce 1-phenyl-3-(3-sulphobenzamido)-5-pyrazolone.  4 - n - Octadecyloxyaniline is prepared by hydrogenating 4 - nitrophenyl - n - octadecyl ether.  It is dissolved in n-propyl alcohol, treated with p-toluenesulphonic acid and then with isoamylnitrite to yield a solution of 4-n-octadecyloxybenzenediazonium - p - toluene-sulphonate.  1 - Hydroxy - N - (b  - sulphoethyl) - 2 - naphthamide K salt is prepared by refluxing phenyl 1-hydroxy-2-naphthoate, taurine and potassium hydroxide in ethyl alcohol.  N - Ethyl - 3 - methyl - N(b  - sulphoethyl) aniline sodium salt is made by refluxing N-ethyl-N - toluidine and sodium 2 - bromo - ethanesulphonate and treating the melt with alkaline water.  It is coupled with diazotized m-nitroaniline to produce b  - {N - ethyl - N - [3-methyl - 4 - (3 - nitrophenylazo) - phenyl]-amino} - ethylsulphonic acid sodium salt and this is reduced with sodium sulphide to the corresponding amino compound. Specifications 635,841 and 645,877 are referred to.ALSO:1-Phenyl-3- (3-sulphobenzamide) -4- (4-n-octadecyloxy-phenylazo) -5-pyrazolone sodium salt is made by alkaline coupling of 1-phenyl-3-(3-sulphobenzamide)-5-pyrazolone with 4-n-octadecyloxybenzenediazonium p-toluenesulphonate (see Group IV(b)).  1-Hydroxy-N- (b -sulphoethyl)-4- (4-n-octadecyloxyphenylazo) -2-naphthamide potassium salt is made by alkaline coupling of 1-hydroxy-N-(b -sulphoethyl)-2-naphthamide with the above mentioned diazonium compound.  1-Hydroxy-4- \sT 3- [4- (N-ethyl-N-b -sulphoethyl)-2-methylphenylazo] phenylazo\sV-N-[g -(2 : 4-di-tert. amylphenoxy) butyl]-2-naphthamide sodium salt is made by treating b -[N-ethyl-N-(3,methyl-4-(3-aminophenylazo)-phenyl)-amino] ethylsulphonic acid sodium salt with nitrosylsulphuric acid solution and adding the product to 1-hydroxy-2-[g -(2 : 4-di-tert.-amylphenoxy) butyl] naphthamide in pyridine. Specifications 635,841 and 645,877 are referred to.
Patent GB-967082-A (GB)
Title: Sharpening and rust-preventing tools
IPC: B24D15/06
Filed: 1961-07-18
Abstract: 967,082. Abrasive tools. L. S. FOUNTAIN. Oct. 18, 1962 [July 18, 1961], No. 25987/61. Heading B3D. [Also in Division B4] A sharpening tool comprises a hone 8 and pad 7 impregnated with rust-preventing lubricant which are held in fixed relative position with the pad disposed so that an exposed surface of it is unobstructed by an adjacent part of the tool. The cutting edge of a tool may be drawn across the pad 7 to provide it with a lubricant film both before and after sharpening. As shown, the hone and pad are held by tongues 5 formed at the edges of a metal strip 4 projecting from a handle 1, and the parts are further held together by bolts 12. Alternatively, the hone projects from the handle 1 and has the pad secured to one face of it by an adhesive. In another construction, the hone and pad are secured to one surface of a base member which may be shaped to form an oil-retaining trough and provided with a non-slip underface. In a still further construction, the hone and pad are mounted side by side in an open-topped box which is closable by a lid.
Patent GB-264251-A (GB)
Title: Improvements in or relating to electrical transformers and like devices for transferring energy from one circuit to another
IPC: H01F19/02
Filed: 1925-10-17
Abstract: 264,251. Secret Wireless, Ltd., and Chisholm, J. D. Oct. 17, 1925. Transformers. - A transformer, for coupling aerials to wireless receiving circuits and like purposes comprises primary and secondary windings 12 arranged on a laminated core preferably of a non-magnetic character, the laminae being separated by dielectric material and arranged in two .groups connected to form a condenser. The laminae are clamped between end members 13 by bolts 14 and are provided with connecting lugs 11. Tappings may be brought out from each winding to studs 18 co-operating with switch arms 17 mounted on insulating blocks 16 secured to the members 13. The condenser may be connected across the primary winding which, together with one end of the secondary, may be connected to an aerial 21, Fig. 4, the switch arms 17 being connected by leads 22, 23 respectively to earth and the receiving set. Both windings may be tuned to the signals to be received, signals of other wavelength being passed to earth by the primary winding whilst static disturbances are bypassed by the condenser. Alternatively, the condenser may be connected in series with one of the windings.
Patent GB-701977-A (GB)
Title: Improvements relating to washing machines
Inventor: DUNN HAROLD GEORGE
IPC: D06F17/06
Filed: 1950-10-25
Abstract: 701,977. Washing machines. HOOVER, Ltd. Oct. 12, 1951 [Oct. 25, 1950], No. 26005/50. Class 138 (2) A washing machine includes a container A for washing liquid, an impeller in the container, a driving motor D for driving the impeller, and, for emptying the container a pump E of centrifugal or other non-positive type permanently connected to be driven by the driving motor D, the outlet from the pump being connected to a flexible pipe G<2> having a storage position in which its free end is closed by a bung G<4> fixed to the machine, thereby preventing delivery from the pump. The pump E is driven from the motor D through frictional engagement between a wheel E<5> on the pump shaft and a wheel D<4> of larger diameter on the motor shaft. The pump is pivotally mounted by an arm integral with its casing on a projection on the motor casing and the wheels E<5>, D<4> are kept in engagement by a spring which bears on the arm. This wheel E<5> has a rubber tyre E<8>. The inlet of the pump is connected to a sump F in the base of the container A and its outlet is connected through a pipe G<1> and a union G at the top of the machine to the pipe G<2>. The end of the pipe G<2> is normally engaged by the bung G<4> which extends from a block G<3> at the top of the machine; the outlet of the pump is thus blocked. When the tub is to be emptied the pipe G<2> is removed from the bung and an extension pipe is slipped over the end. The pipe G<2> is provided with circumferential bars to make a water-tight joint with the extension pipe. This extension pipe is also used for filling the tub from a household water tap. The impeller of the pump has a large clearance from the pump casing to reduce frictional losses when it is not draining the tub. The impeller of the pump, the part of its casing with the integral supporting arm and the driving wheel E<5> are all made of synthetic resin so that the pump is electrically insulated from the motor. The spokes of the wheel D<4> form a cooling fan for the motor D and the union G and block G<3> also serve as supports for a wringer. A clutch may be provided between the motor and the washing impeller if desired so that the impeller can be stopped when the pump is in use.
Patent GB-254159-A (GB)
Title: Improvements in and relating to the casting of magnesium and its alloys
IPC: B22D21/00
Filed: 1925-10-17
Abstract: 254,159. Michel, G. Oct. 17, 1925. Casting processes; mould materials. - Magnesium or an alloy thereof is cast in a mould made from sand, each grain of which has a protective oxygen-absorbing coating. The coating may be applied by mixing the sand with 0.5 to 0.6 per cent of resin dissolved in oil and 1 to 1.4 per cent of powdered naphthalene may be added to generate the desired reducing atmosphere when the mould is used.
Patent GB-625125-A (GB)
Title: Improvements in the construction of roller crushers
IPC: B02C15/02
Filed: 1946-08-29
Abstract: 625,125. Roller mills. ENTERPRISE R. ET J. MORITZ. Aug. 29, 1946, No. 26025. Convention date, May 28, 1943. [Class 59] In a roller crusher the pressure of the roller on the crushing plate is obtained through a torsion bar. As shown in Fig. 2 the roller E is secured to a torsion bar A which is held at its ends by levers D supported by tierods I. Pressure of the roller on the crushing plate J is adjusted by means of nuts threaded on the ends of the rods I.
Patent GB-335348-A (GB)
Title: Improvements in two-stroke-cycle double-acting internal combustion engines
IPC: F02B75/02
Filed: 1929-08-28
Abstract: 335,348. Ewart, W. E. Aug. 28, 1929. Two-stroke-cycle engines.-In a double-acting engine wherein one combustion chamber is formed within a fixed cylinder 1 and a second 19 within a movable hollow piston 3 in which works a second piston 4, the hollow piston is enlarged at its lower end to form a pump plunger 12. This is used either to abstract the gases from the combustion chambers through a receiver 11, Fig. 6, or to supply scavenging air under pressure to the two chambers through a common air inlet 7. After scavenging combustible mixture is supplied by an independent blower through injection nozzles; the supply to the nozzles may be controlled by cam-actuated valves.
Patent GB-356468-A (GB)
Title: Improvements in or relating to electric switches with arc extinction by self-generated vapour pressure
IPC: H01H33/16
Filed: 1930-09-02
Abstract: 356,468. High - tension switches. SIEMENS - SCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. Sept. 2, 1930, No. 26200. Convention date, Nov. 22, 1929. [Class 38 (v).] Expansion switches in which the arc at break is extinguished by the sudden expansion of selfgenerated vapour pressure, as described in Specification 354,890, employ a resistance liquid, for example soda solution as the switching liquid so that in the switching-in movement the resistance of the liquid is inserted in the circuit before the contacts 3, 4 come together. In the arrangement shown in which the walls 1 of the expansion chamber are of conducting material, the fixed contact is surrounded by an insulating cylinder 9 which isolates a portion of the switching liquid. Small holes 10 in the lower part of the cylinder ensure that the levels of liquid, inside and outside are the same. An external glass tube n serves to indicate the height of the switching liquid. In the form shown, the pressure is built up in the switching chamber, at break, until suddenly released by the automatic opening of the valve 8.
Patent GB-757671-A (GB)
Title: Push-button mechanism for operating ball-point pens
IPC: G05G7/08
Filed: 1954-09-10
Abstract: 757,671. Reservoir pens. SOC. I.A.R.S.A. Sept. 10, 1954 [April 20, 1954], No. 26284/54. Class 146(3) A retractable ball-point pen is actuated by a reciprocatory push - button movable axially against a spring and carrying a projection which co-operates with two opposed rings of teeth mounted co-axially with the reciprocatory member. As shown, a cap 15 has an upper ring 16 of four teeth and four spaces, two of which spaces 17 are deep and the other two 18 are shallower. A ring of teeth 19 is opposed to the ring 16 but positioned such that the teeth of the two rings are circumferentially offset. The spaces between the teeth receive pins 20 and 21 attached to a ring 22 rotatable on a plunger 23 engaging the rear end of a ball-point pen. The plunger 23 is inserted into a hole 24 in in a plunger 25. The plunger 25 has a longitudinal slot 25<SP>1</SP> engaging a projection 26<SP>1</SP>. When the plunger 25 is depressed the pins 20 and 21 are rotated by teeth of the ring 19, such that when the plunger is released the pins 20 and 21 re-engage the teeth of the ring 16 which holds the pen in writing position when the pins engage the spaces 18 and in retracted position when the pins engage the spaces 17.
Patent GB-825227-A (GB)
Title: Methods of instruction in component location and trouble shooting in complicated equipment and means for testing accuracy of answers
Inventor: BVITENKANT NATHAN
IPC: G09B23/18
Filed: 1956-08-28
Abstract: 825,227. Educational appliances. VAN VALKENBURG, NOOGER & NEVILLE Inc. Aug. 28, 1956, No. 26320/56. Class 146(2) A set of charts for use in component identification, circuit tracing and fault finding on complicated electronic equipment, without having access to the actual equipment, has response sheets, Fig. 5A, on which the answers, which are correlated with problems, are invisibly recorded in such a manner as to be capable of being individually rendered visible, so that answers to problems may be checked by the student. Answers may be rendered invisible by covering them with an easily erased but irreplaceable coating of opaque ink, printing them with invisible ink to be rendered visible by applying a suitable chemical, or embossing. Certain of the response sheets have invisibly recorded on them lists of predetermined circuit values, e.g. voltage and resistance, which may be individually uncovered in a logical sequence by the student in a simulated fault finding exercise. Other sheets show the results of actions intended to rectify faults.